//?readOffObj.cpp?:?定義控制臺應(yīng)用程序的入口點(diǎn)。
//

#include?“stdafx.h“
#include???
#include?
#include?
#include?“glut.h“
#include?
#include?
#include?

using?namespace?std;
//typedef?OpenMesh::TriMesh_ArrayKernelT<>?MyMesh;

//鼠標(biāo)交互有關(guān)的
int?mousetate?=?0;?//鼠標(biāo)當(dāng)前的狀態(tài)
GLfloat?Oldx?=?0.0;?//?點(diǎn)擊之前的位置
GLfloat?Oldy?=?0.0;
//與實(shí)現(xiàn)角度大小相關(guān)的參數(shù)，只需要兩個就可以完成
float?xRotate?=?0.0f;
float?yRotate?=?0.0f;
int?tx?=?1;
float?ty?=?0.0f;
float?scale?=?1;

//文件讀取有關(guān)的
const?string?file_1?=?“data/output.obj“;
const?string?file_2?=?“data/output.off“;
const?string?file_3?=?“Geometry/cube.off“;
int?currentfile?=?1;

int?v_num;?//記錄點(diǎn)的數(shù)量
int?vn_num;//記錄法線（off:邊數(shù)）的數(shù)量
int?f_num;?//記錄面的數(shù)量
GLfloat?**vArr;?//存放點(diǎn)的二維數(shù)組
GLfloat?**vnArr;//存放法線的二維數(shù)組
int?**fvArr;?//存放面頂點(diǎn)的二維數(shù)組
int?**fnArr;?//存放面法線的二維數(shù)組
string?s1;
GLfloat?f1?f2?f3?f4?f5;

GLuint?showFaceList?showWireList;
int?showstate?=?1;
bool?showFace?=?true;
bool?showWire?=?false;
bool?showFlatlines?=?false;

//初始化頂點(diǎn)和面???
void?initGL（）
{
	glClearColor（0.0?0.0?0.0?0.0）;
	glClearDepth（2.0）;
	glShadeModel（GL_SMOOTH）;
	glEnable（GL_DEPTH_TEST）;?//用來開啟深度緩沖區(qū)的功能，啟動后OPengl就可以跟蹤Z軸上的像素，那么它只有在前面沒有東西的情況下才會繪制這個像素，在繪制3d時，最好啟用，視覺效果會比較真實(shí)
	//?-------------------?Lighting??
	glEnable（GL_LIGHTING）;?//?如果enbale那么就使用當(dāng)前的光照參數(shù)去推導(dǎo)頂點(diǎn)的顏色
	glEnable（GL_LIGHT0）;?//第一個光源，而GL_LIGHT1表示第二個光源
	//?-------------------?Display?List??
	showFaceList?=?glGenLists（1）;
	showWireList?=?glGenLists（1）;
	
	//?繪制flat
	if?（currentfile?==?1）{
		glNewList（showFaceList?GL_COMPILE）;
		for?（int?i?=?0;?i		{
			glPolygonMode（GL_FRONT_AND_BACK?GL_FILL）;
			glBegin（GL_TRIANGLES）;
			glNormal3f（vnArr[fnArr[i][0]?-?1][0]?vnArr[fnArr[i][0]?-?1][1]?vnArr[fnArr[i][0]?-?1][2]）;
			glVertex3f（vArr[fvArr[i][0]?-?1][0]?vArr[fvArr[i][0]?-?1][1]?vArr[fvArr[i][0]?-?1][2]）;
			glNormal3f（vnArr[fnArr[i][1]?-?1][0]?vnArr[fnArr[i][1]?-?1][1]?vnArr[fnArr[i][1]?-?1][2]）;
			glVertex3f（vArr[fvArr[i][1]?-?1][0]?vArr[fvArr[i][1]?-?1][1]?vArr[fvArr[i][1]?-?1][2]）;
			glNormal3f（vnArr[fnArr[i][2]?-?1][0]?vnArr[fnArr[i][2]?-?1][1]?vnArr[fnArr[i][2]?-?1][2]）;
			glVertex3f（vArr[fvArr[i][2]?-?1][0]?vArr[fvArr[i][2]?-?1][1]?vArr[fvArr[i][2]?-?1][2]）;
			glEnd（）;
		}
		glEndList（）;
	}
	else?if?（currentfile?==?2）{
		glNewList（showFaceList?GL_COMPILE）;
		//glBegin（GL_LINES）;
		/*c?=??a×b?=?（a.y*b.z-b.y*a.z??b.x*a.z-a.x*b.z???a.x*b.y-b.x*a.y）*/
		for?（int?i?=?0;?i		{
			int?a;
			glPolygonMode（GL_FRONT_AND_BACK?GL_FILL）;
			glBegin（GL_QUADS）;
			vnArr[fvArr[i][0]][0]?=?（vArr[fvArr[i][1]][1]?-?vArr[fvArr[i][0]][1]）*（vArr[fvArr[i][3]][2]?-?vArr[fvArr[i][0]][2]）
				-?（vArr[fvArr[i][3]][1]?-?vArr[fvArr[i][0]][1]）*（vArr[fvArr[i][1]][2]?-?vArr[fvArr[i][0]][2]）;
			vnArr[fvArr[i][0]][1]?=?（vArr[fvArr[i][3]][0]?-?vArr[fvArr[i][0]][0]）*（vArr[fvArr[i][1]][2]?-?vArr[fvArr[i][0]][2]）
				-?（vArr[fvArr[i][1]][0]?-?vArr[fvArr[i][0]][0]）*（vArr[fvArr[i][3]][2]?-

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????143872??2018-06-04?21:18??readOffObj\Debug\readOffObj.exe

?????文件????1150440??2018-06-04?21:18??readOffObj\Debug\readOffObj.ilk

?????文件????1937408??2018-06-04?21:18??readOffObj\Debug\readOffObj.pdb

?????文件????3080192??2018-04-19?17:43??readOffObj\ipch\readoffobj-f0ea83ff\readoffobj-4f310b5e.ipch

?????文件????2646136??2006-03-12?08:47??readOffObj\readOffObj\data\bunny.obj

?????文件?????200149??2018-04-19?15:43??readOffObj\readOffObj\data\cow.obj

?????文件????3506958??2006-03-12?08:47??readOffObj\readOffObj\data\dinosaur.obj

?????文件????2971903??2016-11-06?23:45??readOffObj\readOffObj\data\elepham.obj

?????文件???13898803??2016-11-06?21:30??readOffObj\readOffObj\data\mba1.obj

?????文件??????28348??2015-03-28?16:12??readOffObj\readOffObj\data\monkey.obj

?????文件???????1930??2018-04-19?16:49??readOffObj\readOffObj\data\output.obj

?????文件?????499870??2016-11-06?21:30??readOffObj\readOffObj\data\porsche.obj

?????文件????2116225??2016-11-06?21:30??readOffObj\readOffObj\data\radar.obj

?????文件??????46125??2016-11-06?21:17??readOffObj\readOffObj\data\target.obj

?????文件??????66323??2016-11-07?20:18??readOffObj\readOffObj\data\target2.obj

?????文件??????91538??2016-11-06?21:30??readOffObj\readOffObj\data\teddy.obj

?????文件???????1419??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.log

?????文件?????385496??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.obj

?????文件????1638400??2018-04-19?17:43??readOffObj\readOffObj\Debug\readOffObj.pch

?????文件???????1502??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\cl.command.1.tlog

?????文件??????23692??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\CL.read.1.tlog

?????文件???????1150??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\CL.write.1.tlog

?????文件???????1344??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\link.command.1.tlog

?????文件???????3090??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\link.read.1.tlog

?????文件????????608??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\link.write.1.tlog

?????文件????????168??2018-06-04?21:18??readOffObj\readOffObj\Debug\readOffObj.tlog\readOffObj.lastbuildstate

?????文件??????11052??2018-04-19?17:43??readOffObj\readOffObj\Debug\stdafx.obj

?????文件?????756736??2018-06-04?21:18??readOffObj\readOffObj\Debug\vc120.idb

?????文件?????520192??2018-06-04?21:18??readOffObj\readOffObj\Debug\vc120.pdb

?????文件????1511141??2018-04-02?16:31??readOffObj\readOffObj\Geometry\Arma.off

............此處省略47個文件信息